Maybe it has something to do with age? My flock will be a year old in April. The roos I added are only 6 months old. The person who gave me the Barnevelders told me "you'll never figure out chicken psychology" Boy was she right! Even she was surprised at how smoothly it went.
hannakat, are those all girls you have? My girls fought amongst each other much more before. Now, when an "argument" starts among the girls, a roo will come over and step on one of them- ends the discussion right away. They really took charge of the flock.
Yes, they're all hens..... I had a roo up until last spring. Although he was a great flock rooster, he became too mean to humans. We've thought about getting another but I want a 'guaranteed' nice one !! hahaaaa Wonder if there's such a thing? I was going to get 4 new girls but cut it to 2 just in case I found a roo.